Method for activating and regenerating waste industrial activated aluminum oxide

An activated alumina, industrial technology, applied in the direction of alumina/aluminum hydroxide, aluminate/alumina/aluminum hydroxide purification, chemical instruments and methods, etc., can solve environmental pollution and other problems, and achieve environmental pollution, Less damage and lower energy consumption
CN106629796AActive Publication Date: 2017-05-10杭州贝采催化剂有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
杭州贝采催化剂有限公司
Publication Date
2017-05-10

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Abstract

The invention discloses a method for activating and regenerating waste industrial activated aluminum oxide. The method comprises pretreatment, cleaning liquid impregnation treatment and regeneration treatment; adopted cleaning liquid is selected from at least one of acid liquor and alkali liquor and surfactant solution; the regeneration treatment comprises regenerated liquid impregnation and calcination treatment, and adopted regenerated liquid is selected from aluminum-contained solution; the calcination treatment is performed under air atmosphere, and air inlet amount is 300 to 800 m<3> / (h.t). According to the method for activating and regenerating the waste industrial activated aluminum oxide provided by the invention, an original pore structure channel is dredged through a physical and chemical method, and a new pore structure is regenerated on the basis of the existing pore structure to obtain activated aluminum oxide with high specific surface area and high pore volume.
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Description

technical field

[0001] The invention relates to the field of regeneration of industrial solid waste, in particular to a method for activating and regenerating waste industrial activated alumina. Background technique

[0002] Activated alumina is a highly dispersed, porous solid material with rich pores, good thermal stability, wear resistance, high crushing strength, high specific surface area, good adsorption performance, surface acidity, pore size and pore size Because of its adjustable characteristics, it is widely used as adsorbent, catalyst, catalyst carrier, desiccant, defluorinating agent, etc. With the rapid development of industry, the demand for activated alumina is also increasing. After a certain period of use, due to the adsorption of a large amount of impurities on the surface and internal pore structure (taking the waste air separation desiccant as an example, the alumina ball is earthy yellow, and the adsorbed impurities are mainly dust and mineral oil), res...

Claims

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